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WordPress Custom Popup Builder plugin <= 1.3.1 - Improper Access Control vulnerability leading to multiple Authenticated Stored XSS

5.4
CVSS 3.1 score Medium severity
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Software
Popup | Custom Popup Builder
Type
Plugin
Vulnerable versions
<= 1.3.1
Fixed in
N/A
PSID
be2775a50917
Classification
Cross Site Scripting (XSS)
OWASP Top 10
A7: Cross-Site Scripting (XSS)
Required privilege
Requires contributor or higher role user authentication.
Publicly disclosed
2022-06-14

Details

Improper Access Control vulnerability leading to multiple Authenticated Stored XSS discovered by Ngo Van Thien (Patchstack Alliance) in WordPress Custom Popup Builder plugin (versions <= 1.3.1).

Solution

Deactivate and delete. This plugin has been closed as of May 26, 2022 and is not available for download. This closure is temporary, pending a full review.

References

Other known vulnerabilities for Popup | Custom Popup Builder

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